20902239

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 32739840

約数和(自身を除く): 11837601

約数列:

[1, 3, 9, 23, 27, 69, 97, 207, 291, 347, 621, 873, 1041, 2231, 2619, 3123, 6693, 7981, 9369, 20079, 23943, 33659, 60237, 71829, 100977, 215487, 302931, 774157, 908793, 2322471, 6967413, 20902239]

約数ペア:

[(1, 20902239), (3, 6967413), (9, 2322471), (23, 908793), (27, 774157), (69, 302931), (97, 215487), (207, 100977), (291, 71829), (347, 60237), (621, 33659), (873, 23943), (1041, 20079), (2231, 9369), (2619, 7981), (3123, 6693)]